The Oracle is the first of the Nimbus line up to use 6000 series aluminum for a frame. Nimbus chose the classic round crown design for better knee clearance and strength without adding weight.
The Nimbus Oracle frame now comes with the disc brake mounting tab welded to the frame. This design is aimed at the serious unicycle rider offering design advantages that add to the riders current performance. On the rear of the frame there are hose clips for your brake cable keeping it out of the way.
Length of seat tube: 130mm
Material: 6000 series aluminum
Inside diameter seat tube: 25.4mm (seat post diameter)
Outside diameter seat tube: 31.8mm (clamp inside diameter)
Diameter Bearing holder: 42mm (bearing outside diameter) - Click Here for Replacement
Bearing pitch: 127mm (center bearing to center bearing)
Weight: 815g (incl. bearing holders and bolts)
Max Tire Size: 2.5"
Comes with: Welded IS disc mount, bearing housing and bolts